All matter (solid, liquid or gas) has a definite shape and occupies a specific volume.
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Answer: 3597 kJ of heat
Explanation:
According to ideal gas equation:

P = pressure of gas = 5.00 atm
V = Volume of gas = 8.00 L
n = number of moles = ?
R = gas constant =
T =temperature =


As it is given :
1 mole of propane produces = 2220 kJ of heat
Thus 1.63 moles of propane produces =
Thus 3597 kJ of heat is produced
As the tone gets higher, the sound waves get closer together
Answer:
The heat of formation of H2O(g) is likely to be-242,8KJ.
Explanation:
The heat of formation of H2O(g) will be slightly lower than the heat of formation of H2O(1)as some energy is released during condensation of water vapour to liquid water.
8Fe + 6O₂ -----> 4Fe₂O₃
If eight atoms of iron react completely with six molecules of oxygen, 4 molecules of iron (III) oxide will be formed.