What is delta metal?

What is Delta Heg.

What is triangle?

What are the metals present in alloy, bell metal ?

Fill in the blanks : For reduction of metal oxide to metal Delta G must be …………..

Each side of a box made of metal sheet in cubic shape is 'a' at room temperature 'T', the coefficient of linear expansion of the metal sheet is ' alpha '. The metal sheet is heated uniformly, by a small temperature Delta T , so that its new temperature is T + Delta T . Calculate the increase in the volume of the metal box.