Hydrogen as Future Energy Source

During a science project, Prithvi and Shourya are tasked with exploring the physical properties of hydrogen under normal conditions. What are the key characteristics they should focus on?

During a science experiment, Shourya and Prithvi were curious about the properties of hydrogen. They learned that hydrogen has a critical temperature, which is essential for understanding its behavior in different states. What is the critical temperature of hydrogen?

• -273.15°C

• -239.96°C

During a science experiment, Prithvi and Shourya are investigating what happens to hydrogen when it reaches a sufficiently high pressure. What can they expect to observe in their experiment?

During a science experiment, Prithvi and Shourya were curious about the properties of hydrogen. They wanted to know at what temperature hydrogen would change from a solid to a liquid state. What is the melting point of hydrogen?

• -259.19°C

• -240°C

During a science experiment, Shourya and Prithvi are investigating the properties of different gases. They notice that when hydrogen is exposed to a flame, it ignites easily. What is the most characteristic chemical property of hydrogen?

• Density

• Flammability

During a science class, Prithvi asked Shourya, "What is the first element in the periodic table?"

During a science experiment, Shourya and Prithvi are measuring the density of various gases. They find that the density of hydrogen in its gaseous state at 0°C is one of the gases they are studying.

• 0.5 g/l

• 0.089 g/l

During a science experiment, Shourya and Prithvi were curious about the properties of different gases. They decided to investigate the boiling point of hydrogen. What is the boiling point of hydrogen?

• -253°C

• -240°C

During a science project, Prithvi and Shourya are exploring the significance of liquefaction in hydrogen storage. What insights can they gain from their research on this topic?

During a science experiment, Prithvi and Shourya are curious about the ignition range of hydrogen. They want to know how flammable hydrogen is and at what concentrations it can ignite. Can you explain the ignition range of hydrogen?