Calculate the difference between heats of reaction at constant p

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 Multiple Choice QuestionsShort Answer Type

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41.

Calculate the difference between heats of reaction at constant pressure and constant volume for the reaction:
space 2 straight C subscript 6 straight H subscript 6 left parenthesis straight I right parenthesis space plus space 15 straight O subscript 2 left parenthesis straight g right parenthesis space rightwards arrow space space 12 CO subscript 2 left parenthesis straight g right parenthesis space plus space 6 straight H subscript 2 straight O left parenthesis straight I right parenthesis at 25 degree straight C space in space kJ.


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42.

Give a chemical reaction in which ∆ H and ∆E are equal.

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43.

What is the relationship between qpand qv?

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44.

Under what conditions is ∆H = ∆U in a chemical reaction?

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45.

What is given of w if:
(i) work is done by the system.
(ii) work is done on the system.

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46.

What is the mode of transference of energy, when petrol is subjected to combustion in an internal combustion engine ?

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47.

Define heat capacity of a system.

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48.

Define specific heat of a substance.

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49.

Define molar heat capacity of a substance.

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50.

Differentiate between molar heat capacity and molar solution.

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