Question

NaNO3 react with water is endothermic or exothermic reaction

Answer 1

The dissolution of sodium nitrate (NaNO3) in water is an endothermic reaction. When NaNO3 dissolves, it absorbs heat from the surroundings, which can result in a decrease in temperature of the solution. This is why you may feel the solution getting cooler when NaNO3 is added to water.