a sample of gas is initially at STP. what would the pressure be if the temperature were increased to 819C ?

The pressure would be 4 atm

Given

gas at STP(1 atm, 273 K)

T₂ = 819 °C + 273 =1092 K

Required

The peressure

Solution

Gay Lussac's Law  

When the volume is not changed, the gas pressure is proportional to its absolute temperature  

P₂ = (P₁.T₂)/T₁

P₂ = (1 atm x 1092 K)/273 K

P₂ = 4 atm

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .