Diffusion co-efficient of a metal in a solid solution depends upon its

Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?

A

6.09%

B

10%

C

10.75%

D

21.5%

100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?

A

70 kg

B

36 kg

C

44 kg

D

56 kg

Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?

A

600

B

800

C

300

D

250

E

None of these

For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.

A

Physical

B

Chemical

C

Both A and B

D

Neither A nor B

Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

A

Proportional to

B

Independent of

C

Inversely proportional to

D

Proportional to the square of

Thermal conductivity of a conducting solid material depends upon its

A

Temperature

B

Porosity

C

Both A & B

D

Neither A nor B

A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the

A

Magnitude of the forces on journal

B

Angular velocity of journal

C

Clearance between journal and bearing

D

Radius of journal

The specific cutting energy used for establishing the machinability of the metal depends upon its

A

coefficient of friction

B

micro-structure

C

work hardening characteristics

D

all of the mentioned

Simple diffusion and facilitated diffusion share the following characteristics

A

Do not require ATP

B

Saturation kinetics

C

Transport solute along concentration gradient

D

Can be blocked by specific inhibitors

E

Require transport protein

Ordinary diffusion process is also called __________ diffusion.

A

Pressure

B

Thermal

C

Concentration

D

Forced

Diffusion co-efficient of a metal in a solid solution depends upon its

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