Asap ! equal masses of water and alcohol, both at 25°c, are heated at the same rate under identical conditions. after 3 minutes the temperature of the alcohol is 50°c. it took 5 minutes for the water to reach 50°c. which of the following is true once the water and alcohol have both reached 50°c? a) the water received more energy than the alcohol. b) the alcohol received more energy than the water. c) both received the same amount of energy. d) it is impossible to tell from the information given.

Answer 1
Correct Option: A) The water received more energy than the alcohol. 

Reason:
In the present case, the heating rate of both water and alcohol was same. So same amount of heat was supplied, at any given point of time. However, water took more time to reach the temperature of 50 oC. This clearly depicts that, more amount of heat was supplied to water, as compared to alcohol, to reach the desired temperature. It also suggest that, water takes longer to change its temperature than the alcohol


Answer 2:
Correct option:  For the same temperature change, water requires more energy

Reason: 
In the present case, time required for water to achieved the same temperature as that of alcohol, at a constant heating rate, was more. This suggest that for the same temperature change, water requires more energy. This can be attributed to the fact that, hydrogen bonding in water is more stronger than that in alcohol. Due to this, more amount of energy is required to overcome hydrogen-bonding in water.