Figure 12.5 shows the P-V diagram of an ideal gas undergoing a change of state from A and B. Four different parts I,II,III and IV as shown in the figure may lead to the same change of state. a) Change in internal energy is same in IV and III cases, but not I and II b) Change in internal energy is same in all the four cases c) Work done is maximum in case I d) Work done is minimum in case II
If the e.m.f of a galvanic cell is negative , it implies that :
{:("List -I","List -II"),((a)"Work done on the system",(e)"positive"),((b)"heat energy given to the system",(f) "negative"),((c)"change in internal energy ",(g)"may be positive (or) negative "),((d)"During cyclic process change in Internal energy",(h)"Zero"):}
Arrange p-methylaniline (I), m-methyl aniline (II), aniline (III), o-methyl aniline (IV), in the order of basicity.
(I) Egg (II)Pupa (III)Adult (IV)Larva. The correct order is
Applying Gauss's law derive the expression for electric intensity due to a charged conducting spherical shell at (i) a point outside the shell (ii) a point on the surface of the shell and (iii) a point inside the shell.
Choose the correct statements from the following a) in potentiometer experiment balancing length represent the potential difference across the secondary cell b) the shunt resistance between the terminals of cell in the secondary circuit of potentiometer is increased, the balancing length increases c) in potentiometer experiment the e.m.f of the cell in the secondary circuit may be greater than the e.m.f of cell in the primary circuit d) potentiometer is used to measure thermo e.m.f. also
The function f:R rarrR is defined by f(x)=3^(-x) . Observe the following statements I. f is one - one II. f is onto III. F is a decreasing function Out of these, true statements are :
NARENDRA AWASTHI-THERMODYNAMICS-Level 3 - Match The Column
