The current record-holder for melting point is tantalum hafnium carbide (Ta4HfC5), a refractory compound with a melting point of 4215 Â°C In other words, you could not heat a rock that high because there's not a furnace or a crucible on earth that could hold it.
DEFINITION of 'Trade Surplus'. An economic measure of a positive balance of trade, where a country's exports exceeds its imports. A trade surplus represents a net inflow of domestic currency from foreign markets, and is the opposite of a trade deficit, which would represent a net outflow. Next Up.
Definition of 'Consumer Surplus' Definition: Consumer surplus is defined as the difference between the consumers' willingness to pay for a commodity and the actual price paid by them, or the equilibrium price. Description: Total social surplus is composed of consumer surplus and producer surplus. It is a measure of consumer satisfaction in terms of utility. Graphically, it can be determined as the area below the demand curve (which represents the consumer's willingness to pay for a good at different prices) and above the price line.