Questions

Materials that usually allow electricity to pass through them are called Good conductors of electricity.

Conductors conduct electrical current very easily because of their free electrons.

Examples are :: Aluminium, Gold, Copper, Silver

Materials that do not allow or oppose electrical current & make poor conductors are called Insulators.

Examples are :: Glass, Plastic, Wood, Air,...

The Gobi desert is located in northern China region and southern Mangolia region.

Variable costs are expenses that vary in proportion to the amount of goods or services that a business produces. 

Examples of variable cost include labor, packaging and raw materials.

The Parliament cannot amend those provisions which form the ‘basic structure’ of the Constitution. This was ruled by the Supreme Court in the Kesavan and a Bharati Case. (1973)

Basic Structure of the Indian Constitution is not defined. But according to SC, the basic structure can be evolved but cannot be destroyed. Hence it falls within the constituent powers of the Parliament. Hence both 1 and 3 are correct.

T = 273 °K

Using the formula,

DGq = DHq –TDS

-45 = -90 –273 DS

DS = 0.164

Now since DHq and DSq are independent,T2= DH/DS = 45/0.164 = 273°K

Required Temp = 273 + 273 = 546°K