Home / Unit-8 Energetics / Question
MCQ
Which of the following has a negative delta H value?
Unit-8 Energetics
A Photosynthesis
B Melting of ice
C Burning of fuel
D Decomposition of CaCO3
Explanation

Burning of fuel releases heat, so its delta H is negative.

Related MCQs

The physical states of substances are written in thermochemical equations because they:
Unit-8 Energetics View
Melting of ice and evaporation of water are endothermic because they:
Unit-8 Energetics View
The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius is its:
Unit-8 Energetics View
An energy profile diagram is a graph that shows:
Unit-8 Energetics View
A spontaneous reaction that proceeds by itself generally:
Unit-8 Energetics View
While boiling water at 100 degrees C, if heating is continued, the temperature of the water:
Unit-8 Energetics View