At very low temperatures, the molar heat capacity of rock salt varies with temperature according to debyeâs t 3 law: c = k t 3 î¸ 3 , where k = 1940 j/(molâ·k) and î¸ = 281 k.
a. weâve learned the relation q = ncât for the molar heat capacity, which works well when the molar heat capacity is a constant. how do you think we should handle a situation in which the heat capacity varies with temperature? (hint: this is what calculus is how did we calculate work by a force that varies with position, like the force from a spring? ) find a way to calculate the amount of heat required to raise the temperature of 1.50 mol of rock salt from 11.0 k to 45.0 k; show your work and explain your reasoning.

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

a cold ice-tea.

pour in room temperature or cold water. cover the pitcher and refrigerate. steep white or green tea for 6 to 8 hours; steep black or oolong tea for 8 to 12 hours.jun 28, 2015