THERMAL PHYSICS

The value of universal gas constant

• 3.81 Jmol^–1 K^–1

• 8.03 Jmol^–1 K^–1

• 1.38 Jmol^–1 K^–1

• 8.31 Jmol^–1 K^–1

If a substance is heated or cooled, the

change in mass of that substance is

• positive

• negative

• zero

• none of the above

If a substance is heated or cooled, the

linear expansion occurs along the axis

• X or –X

• Y or –Y

• both (a) and (b)

• (a) or (b)

Tags

NGSS.MS-PS1-4

Temperature is the average ___________

of the molecules of a substance

• difference in K.E and P.E

• sum of P.E and K.E

• difference in T.E and P.E

• difference in K.E and T.E

Tags

NGSS.MS-PS1-4

In the Given diagram, the possible direction
of heat energy transformation is

• A $\longleftarrow$  B, A $\longleftarrow$ C, B  $\longleftarrow$ C

• A $\longrightarrow$  B, A $\longrightarrow$  C, B $\longrightarrow$  C

• A $\longrightarrow$  B, A $\longleftarrow$  C,  B $\longrightarrow$  C

   

• A $\longleftarrow$  B, A $\longrightarrow$  C, B $\longleftarrow$  C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4