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Em um acidente no laboratório, um frasco contendo 2.0 kg de NaOH foi quebrado e, para neutralizar essa soda foi proposta a reação
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l),
que liberou 660 Kcal. Se 1 cal = 4.18 J, a variação da
entalpia de neutralização, em kJ mol-1, é igual a:
Text 1
The global warming controversy
The global warming controversy is an ongoing dispute about the effects of humans on global climate and about what policies should be implemented to avoid possible undesirable effects of climate change.
The current scientific consensus on climate change is that recent warming indicates a fairly stable long-term trend, that the trend is largely human-caused, and that serious damage may result at some future date if steps are not taken to halt the trend.
Mainstream scientific organizations worldwide (Royal Society, American Geophysical Union, Joint Science Academies, Intergovernmental Panel on Climate Change, American Meteorological Society, and American Association for the Advancement of Science) concur with the assessment that most of the observed warming over the last 50 years is likely to have been due to the human-caused increase in greenhouse gas concentrations.
However, there is also a small but vocal number of scientists in climate and climate-related fields that disagree with the consensus view.
Adapted from:< https://www.sciencedaily.com/terms/global_warming_controversy.htm.> Access 30 Sept. 2017.
Text 2
Climate change label leads to climate science acceptance
On the heels of President Donald Trump's decision to pull the United States out of the Paris climate agreement, a new Cornell University study finds that labels matter when it comes to acceptance of climate science.
The U.S. public doubts the existence of "global warming" more than it doubts "climate change".
In a nationally representative survey, 74.4 percent of respondents said they believed that climate change is really happening. But only 65.5 percent said they believed in global warming.
Nonetheless, it's important to remember that 65 percent of respondents did indicate that global warming is occurring, said co-author Peter Enns, associate professor of government. "In other words, although the term matters -- climate change versus global warming -- an overwhelming majority of people still state that global warming is happening," he said.
Adapted from:<http://mediarelations.cornell.edu/2017/06/21/climate-change-label-leads-to-climate-science-acceptance/>. Access. 23 Sept. 2017.
Glossário
TEXTO 1 |
Text 1
The global warming controversy
The global warming controversy is an ongoing dispute about the effects of humans on global climate and about what policies should be implemented to avoid possible undesirable effects of climate change.
The current scientific consensus on climate change is that recent warming indicates a fairly stable long-term trend, that the trend is largely human-caused, and that serious damage may result at some future date if steps are not taken to halt the trend.
Mainstream scientific organizations worldwide (Royal Society, American Geophysical Union, Joint Science Academies, Intergovernmental Panel on Climate Change, American Meteorological Society, and American Association for the Advancement of Science) concur with the assessment that most of the observed warming over the last 50 years is likely to have been due to the human-caused increase in greenhouse gas concentrations.
However, there is also a small but vocal number of scientists in climate and climate-related fields that disagree with the consensus view.
Adapted from:< https://www.sciencedaily.com/terms/global_warming_controversy.htm.> Access 30 Sept. 2017.
Text 2
Climate change label leads to climate science acceptance
On the heels of President Donald Trump's decision to pull the United States out of the Paris climate agreement, a new Cornell University study finds that labels matter when it comes to acceptance of climate science.
The U.S. public doubts the existence of "global warming" more than it doubts "climate change".
In a nationally representative survey, 74.4 percent of respondents said they believed that climate change is really happening. But only 65.5 percent said they believed in global warming.
Nonetheless, it's important to remember that 65 percent of respondents did indicate that global warming is occurring, said co-author Peter Enns, associate professor of government. "In other words, although the term matters -- climate change versus global warming -- an overwhelming majority of people still state that global warming is happening," he said.
Adapted from:<http://mediarelations.cornell.edu/2017/06/21/climate-change-label-leads-to-climate-science-acceptance/>. Access. 23 Sept. 2017.
Glossário
Text 1
The global warming controversy
The global warming controversy is an ongoing dispute about the effects of humans on global climate and about what policies should be implemented to avoid possible undesirable effects of climate change.
The current scientific consensus on climate change is that recent warming indicates a fairly stable long-term trend, that the trend is largely human-caused, and that serious damage may result at some future date if steps are not taken to halt the trend.
Mainstream scientific organizations worldwide (Royal Society, American Geophysical Union, Joint Science Academies, Intergovernmental Panel on Climate Change, American Meteorological Society, and American Association for the Advancement of Science) concur with the assessment that most of the observed warming over the last 50 years is likely to have been due to the human-caused increase in greenhouse gas concentrations.
However, there is also a small but vocal number of scientists in climate and climate-related fields that disagree with the consensus view.
Adapted from:< https://www.sciencedaily.com/terms/global_warming_controversy.htm.> Access 30 Sept. 2017.
Text 2
Climate change label leads to climate science acceptance
On the heels of President Donald Trump's decision to pull the United States out of the Paris climate agreement, a new Cornell University study finds that labels matter when it comes to acceptance of climate science.
The U.S. public doubts the existence of "global warming" more than it doubts "climate change".
In a nationally representative survey, 74.4 percent of respondents said they believed that climate change is really happening. But only 65.5 percent said they believed in global warming.
Nonetheless, it's important to remember that 65 percent of respondents did indicate that global warming is occurring, said co-author Peter Enns, associate professor of government. "In other words, although the term matters -- climate change versus global warming -- an overwhelming majority of people still state that global warming is happening," he said.
Adapted from:<http://mediarelations.cornell.edu/2017/06/21/climate-change-label-leads-to-climate-science-acceptance/>. Access. 23 Sept. 2017.
Glossário
Text 1
The global warming controversy
The global warming controversy is an ongoing dispute about the effects of humans on global climate and about what policies should be implemented to avoid possible undesirable effects of climate change.
The current scientific consensus on climate change is that recent warming indicates a fairly stable long-term trend, that the trend is largely human-caused, and that serious damage may result at some future date if steps are not taken to halt the trend.
Mainstream scientific organizations worldwide (Royal Society, American Geophysical Union, Joint Science Academies, Intergovernmental Panel on Climate Change, American Meteorological Society, and American Association for the Advancement of Science) concur with the assessment that most of the observed warming over the last 50 years is likely to have been due to the human-caused increase in greenhouse gas concentrations.
However, there is also a small but vocal number of scientists in climate and climate-related fields that disagree with the consensus view.
Adapted from:< https://www.sciencedaily.com/terms/global_warming_controversy.htm.> Access 30 Sept. 2017.
Text 2
Climate change label leads to climate science acceptance
On the heels of President Donald Trump's decision to pull the United States out of the Paris climate agreement, a new Cornell University study finds that labels matter when it comes to acceptance of climate science.
The U.S. public doubts the existence of "global warming" more than it doubts "climate change".
In a nationally representative survey, 74.4 percent of respondents said they believed that climate change is really happening. But only 65.5 percent said they believed in global warming.
Nonetheless, it's important to remember that 65 percent of respondents did indicate that global warming is occurring, said co-author Peter Enns, associate professor of government. "In other words, although the term matters -- climate change versus global warming -- an overwhelming majority of people still state that global warming is happening," he said.
Adapted from:<http://mediarelations.cornell.edu/2017/06/21/climate-change-label-leads-to-climate-science-acceptance/>. Access. 23 Sept. 2017.
Glossário
