Edexcel Jan 2017 (IAL) Paper 4 Q1

Answers available below

SECTION A Answer ALL the questions in this section. You should aim to spend no more than 20 minutes on this section. For each question, select one answer from A to D and put a cross in the box If you change your mind, put a line through the box . cross and then mark your new answer with a 1 The rate equation for the reaction in which carbon disulfide, CS2, decomposes is The units of the rate constant, k, are rate = k[CS2] A s B s 1 C mol dm 3 s1 D dm 3 mol1 s1 2 The chemical equation and the rate equation for the reaction between nitrogen monoxide and bromine are (Total for Question 1 = 1 mark) 2NO(g) + Br2(g) (cid:111) 2NOBr rate = k[NO]2[Br2] When the concentration of nitrogen monoxide is halved and the concentration of bromine is doubled, the rate is A unchanged. B doubled. C halved. D quartered. Use this space for any rough working. Anything you write in this space will gain no credit. (Total for Question 2 = 1 mark) *P48372RA0228* D O N O T W R I T E I N T H I S A R E A D O N O T W R I T E I N T H I S A R E A D O N O T W R I T E I N T H I S A R E A<br />

Show answer