1)An increase in temperature ____________ the kinetic energy and average speed of the gas particles.

A. decreases
B. increases

2)As a result, the pressure on the walls of the container __________.

A. decreases
B. increases
C. is not affected

1) i think its increase
2)i think its also increase

ya i "think" increase and increase

You are correct in both cases.

1) An increase in temperature increases the kinetic energy and average speed of gas particles. This can be explained using the kinetic theory of gases. According to this theory, temperature is a measure of the average kinetic energy of particles. When the temperature increases, the gas particles gain more energy, which leads to an increase in their kinetic energy and average speed.

2) As a result of the increased kinetic energy and average speed of the gas particles, the pressure on the walls of the container also increases. This can be explained by the collision theory, which states that gas particles constantly collide with each other and with the walls of the container. When the particles have higher kinetic energy and speed, they collide more forcefully and frequently with the walls, exerting a greater pressure on them. Therefore, an increase in temperature leads to an increase in pressure on the walls of the container.