1995 WAEC Chemistry Theory (a)(i) Sketch a graph to illustrate Charles' law. (ii) A gas occupies 500 cm\(^{ 3}\)...

(a)(i) Sketch a graph to illustrate Charles' law.

(ii) A gas occupies 500 cm\(^{ 3}\) at 2TC. calculate its volume at 40°C constant pressure.

(b) List two gases that are used as refrigerant

(a)(i)

(ii) \(\frac{v}{T} = \frac{v}{T}\)

\(\frac{500}{300} = \frac{v}{313}\)

\(v_2 = \frac{500 \times 313}{300}\)

\(v_2 = 522cm^3\)

(b) Two gases that are used as refriger are;

(i) Ammonia (NH\(_3\)) and

(ii) Carbon dioxide (CO\(_2\))

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