DP Chemistry (last assessment 2024)

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Question 19N.3.hl.TZ0.16b

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.hl.TZ0.16b
Level hl Paper 3 Time zone TZ0
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 1]
19N.3.hl.TZ0.16b

Consider the following data for butane and pentane at STP.

(b)

Outline what is meant by the degradation of energy.

[1]

Markscheme

energy converted to heat
OR
energy converted to less useful/dispersed forms
OR
energy converted to forms that have lower potential to do work
OR
heat transferred to the surroundings ✔

NOTE: Reference to energy conversion/transfer required. Do not accept reference to loss of energy.

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