Explain how the volume of a figure is changed if each dimension is multiplied by a factor of 2.

Explain how the surface area of a box is changed if each dimension is multiplied by a factor of 3.

Explain how heat affects during a change of state.

Tell whether a figure’s surface area has increased or decreased if each dimension of the figure is changed by a factor of 1/3.

The mean of 8 numbers is 25. If each number is multiplied by 2, the new mean will be

The reaction A+B to products is first order in each of the reactants. (a) How does the rate of reaction change if the concentration of A is increased by factor 3 ? (b) What is the change in the rate of reaction if the concentration of A is halved and concentration of B is doubled ?

The variation of pressure with volume of the gas at different temperatures can be graphically represented as shown in figure. On the basis of this graph answer the following question. (i) How will the volume of a gas change if its pressure is increased at constant temperature ? (ii) At a constant pressure, how will the volume of a gas change if the temperature is increased from 200 K to 400 K ?

Explain how the direction of exchange of gases in plants change with the time of the day.

The variation of pressure with volume of the gas at different temperatures can be graphically represented as shown in figure. On the basis of this graph answer the following questions. How will the volume of a gas change if its pressure is increased at constant temperature?

Explain how change in income affects the budget line. Use diagrame