Question

If calorific value of methane is 890 kJ/mole. Then 32 g of methane will produce
(A) 1780 kJ/mole (B) 1335 kJ/mole (C) 445 kJ/mol (D) none of these​

Answer 1

Answer:-

$\bold{ \: 1780 KJ{mole}^{-1}}$

Explanation:-

Given:-

Califoric value of methane = 890KJ/mole

To Find:-

Heat produced by 32gm of methane

Solution:-

W.k.t,

1 mole of methane = 16

Then,

32 gm of methane = 2 moles

Heat produced by 1 mole of methane = 890 kJ/mole

Now,

Heat Produced by two moles of methane is

${\rightarrow} \: 2 \times 890 KJ{mole}^{-1}$

${\rightarrow} \: 1780 KJ{mole}^{-1}$_______option(A)

Answer 2

Explanation:

KJ{mole}^{-1}}1780KJmole