Are Kang and Kang homophones?

Yes, both of them read kang's first sound, but their meanings are different

Kang's explanation

[kāng]

1. Peace: ~ music (lè). ~ ping. ~ ning.

2. emptiness: the radish is gone.

kang's explanation

kāng

explanation:

[~ ci] A. Passionate, such as "~ ~ passionate"; B. Treat people with enthusiasm and be willing to help others with property, such as "being generous".