Question

जोड़े मिलान करें :---
१. स्वेजनहर १. पाइपलाइन
२. स्वणिमचतुर्भुज। २.प्रथमउपग्रह
३. आर्यभट्ट ‌‌ ३.वैशिककनेटवर्क
४. इंटरनेट। ४.जलमार्ग ५. एच,वी,जी५ ५.राष्टीयराजमार्ग​

Answer 1

An endothermic process is any process with an increase in the enthalpy H (or internal energy U) of the system.[1] In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system. It may be a chemical process, such as dissolving ammonium nitrate in water, or a physical process, such as the melting of ice cubes.