"at 27°c and 750 mm hg a sample of hydrogen occupies 5.00 l. how much space will it occupy at stp? "

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.

option number c is the right answer.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular