Answer:
C.
Explanation:
The hand was touching the pan, which was hot, so the human reacted to it by putting the hand away from the pan.
Answer: A. the chemical change will occur faster in beaker X.
Explanation:
Temperature is one of the factors that affect the rates of chemical reactions. Increase in temperature increases the rates of reaction by increasing the kinetic energy of the reacting particles so that energetic collisions occur and more bonds in the reactants will be broken and; atoms and ions recombine to form new compounds. Beaker X which is at room temperature has higher temperature than beaker Y which is kept in the refrigerator, thus reacting particles in beaker X has more kinetic energy than the ones in beakerA. the chemical change will occur faster in beaker X. Y.
1 Evaporation
2 False…
The more volatile the higher it goes on the graph. The less volatile the lower it
Goes.
Explanation:
The given data is as follows.
T = 298 K,
= -5645 kJ/mol
= -5798 kJ/mol
Relation between
and
are as follows.
=
-5798 kJ/mol = -5645 kJ/mol - 
-153 kJ/mol = -
= 0.513 kJ/mol K
Now, temperature is
= (37 + 273) K = 310 K
Since,
=
= 
= (-5645 kJ/mol - 159.03 kJ/mol)
= -5804.03 kJ/mol
As, change in Gibb's free energy = maximum non-expansion work

= -5804.03 kJ/mol - (-5798 kJ/mol)
= -6.03 kJ/mol
Therefore, we can conclude that the additional non-expansion work is -6.03 kJ/mol.