Evaluate the following statements regarding the characteristics and behavior of heat transfer mechanisms:
S1: Conduction is most effective in gases.
S2: Convection results in the movement of warmer fluid to cooler areas.
S3: Radiation can occur in a vacuum.
S4: Metals are generally poor conductors of heat.
1
S1 and S4 are false; S2 and S3 are true.
2
S1, S3, and S4 are true; S2 is false.
3
S2 and S4 are true; S1 and S3 are false.
4
All statements are true