Chemistry

State two differences betwecii the properties of solids and gases

(a)(i) State two differences betwecii the properties of solids and gases

(ii) What process does each of X, Y and Z represent in the changes shown below?

 

(b)(i) State Charles’ Law (ii) Draw a sketch to graphically illustrate Charles’ Law.

 

(c) 60 cm of hydrogen diffused through a porous membrane in 10 minutes. The same volume of a gas G diffused through the same membrane in 37.4 minutes. Determine the relative molecular mass of G. [ H = I ]

 

(d)(i) State two assumptions X of the kinetic theory.

(ii) Consider the reaction represented by the Solid   of Liquid following equation:

H(_{2(g)}) + Cl(_{2(g)}) (to) 2HCI(_{(g)})

Use the kinetic theory to explain how the rate of formation of HCI(_{(g)}) would be affected by I. increase in temperature; II. decrease in pressure.

 

(e) Given different examples, mention one metal in each case vihich produces hydrogen on reacting with (i) dilute mineral acid; (ii) cold water; (iii) steam; (iv) hot, concentrated alkali.