Marble reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide. in which of the following mixtures is the rate of reaction likely to be the fastest?

Sagot :

QUESTION:

Marble reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide. In which of these mixtures is the rate of reaction likely to be the greatest?

a. 1 g of marble chips in 100 cm³ of hydrochloric acid at 20°C.

b. 1 g of powdered marble in 100 cm³ of hydrochloric acid at 30°C.

c. 1 g of powdered marble in 100 cm³ of hydrochloric acid at 20°C.

d. 1 g of marble chips in 100 cm³ of hydrochloric acid at 30°C.

ANSWER:

b. 1 g of powdered marble in 100 cm³ of hydrochloric acid at 30°C.

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