Point a and point b are 50 meters apart. the temperature at point a is 60°c. at point b, it is 55°c. the temperature gradient between the points is . keeping other conditions constant, if the mantle and the crust were closer to each other, the temperature gradient between the two would be .

0.1 c/m and higher

Explanation:

Given:

Temperature at A = 60 C

Temperature at B = 55 C

To determine:

The temperature gradient

Explanation:

Temperature gradient can be expressed as the variation in temperature from one point to the other

Temperature gradient = ΔT/Δd

= (60-55) C/50 m = 0.1 C/m

Ans: Thus the temperature gradient is 0.1 C/m

(a) 0.25 mol

(b) 0.11 mol

(c) 8.77 mol

Explanation:

(a)

We use the equation given by ideal gas which follows:

where,

P = pressure of the gas = 1.00 atm

V = Volume of the gas = 6.0 L

T = Temperature of the gas = 298 K

R = Gas constant =

n = number of moles = ?

Putting values in above equation, we get:

(b)

We use the equation given by ideal gas which follows:

where,

P = pressure of the gas = 0.296 atm

V = Volume of the gas = 6.0 L

T = Temperature of the gas = 200 K

R = Gas constant =

n = number of moles = ?

Putting values in above equation, we get:

(c)

We use the equation given by ideal gas which follows:

where,

P = pressure of the gas = 30 atm

V = Volume of the gas = 6.0 L

T = Temperature of the gas = 250 K

R = Gas constant =

n = number of moles = ?

Putting values in above equation, we get: