Question 4 3
4. A 12-ohm resistor is connected to a voltage battery. If the voltage provided by the battery is
doubled, the current through the resistor is
A. doubled
B. halved
C. quadrupled
D. unchanged
Justification:

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.